Hub for vehicle-wheels.



V Patented luly I8. |899i n. c. 4BMLIN. HUB F08 VlllllILEA WHEELS.

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UNITED STATES PATENT rries.z

d clear, and eXact description.

'cristina CONSTANT BALLIN, or Panis, FRANCE.Y

, srncIrIcArroN forming pm of Letters raient' Nof 629,229, dated Jug;.185.18%

A Applicant nea Mer 1, 1899.v serial No. 715,165. on mais. A

To all whom it may concern/: y

Be it known that I, CAsiMin vConsrnm BALLIN, of 5 Rue de Chatea'udun,Paris, Republic of France, have invented Improve-Y ments inAntivibratoryElastic Naves forVe` hicle-VVheels, of which the iollowin gis af uli,

This invention relates to improvements in antivibratory elastic navesforthe wheels of carriages and other vehicles. i

The said invention is chiefly characterized by the interposition betweenthe wheel-nave proper, which carries the spokes of the wheel,` and therevolving socket supported on the axle, of an elastic non-metallic pador cushion com posed of abody of softmaterial-such, for example, ascaoutchouc-'to diminish the jolts, shocks, and mechanical vibrationsandnoises.V This pad or cushion is advantageously formed by two series ofcaoutchouc balls arranged concentrically around the central socket andin the first place tightly packed in a chamber or race, the said padorcushion being made. in sections for the purpose ofpermitting themovements of compression at the moment of the shookr to be etfectedbysimple displacement of the elastic material itself and not by rubbing ofthisl material on the walls which inclose it, as is the case with acontinuous ring.

To enable the said invention to be readily understood, I have shown inthe accompanying drawings, but as an example' only, one form of the saidelastic nave.

In the said drawings, Figure l shows in vertical longitudinal sectionthe nave of an ordinary Wooden wheel having my improvements appliedthereto. Fig. 2 shows a vertical transverse section of the same. Fig. 3is a similar view to Fig. .1, illustrating the method of subjecting theballs to a preliminary compression during construction. Fig. 4 showsadetail .of construction. I'

Like letters indicate corresponding parts throughout the drawings.

In principle my apparatus is composed of an exterior socket, constructedin two parts a a"in such a manner as to permit the said parts to beinserted in the wooden nave b, carrying the spokes, and fixed andsecured on `the said nave by coach-screws or other fastening devices.Inv the interior of the parts a `recesses c are arranged torcceive thespherical caontchoucballs d. Cones e e are provided'to secure and supportthe balls'which are lodged in the recess f. .Y These cones e e'rand a', forming the saidvsocketysegmental are threadedgand 'keyed onthe socket or sleeve'g, which turns on theaxle, the cone e vbeing xedand resting'against a shoulder near one end of the said socketg and thecone e being free to slidebut not to turn relatively to the said socketor sleeve g and being held in place by the locking-nut h. The adjacentfaces of both the nut 7i and th'e cone e' have similar toothed rackswith inclined teeth, Fig. 4, cut thereon.

The teeth of therack on the nut h incline in an *inverse direction tothe screw-thread of the said nut, so that when the cone e' is drivenright home by thenut and the teeth'of the racks are in engagement it isabsolutely impossible for the nut to work loose.

v In Fig. 3 I have shown in broken lines the necessary appliances forputting on and taking oi the nut h. These appliances comprise a bridle't' and a counter-bridle 7a, intended to ,hold up the socket. A. vscrewZ is providedto press` on the movable cone e' to release its rack fromthe corresponding rack on the nut h,'and consequently to permit thislatter to turn for screwing together or unscrewing. The pressureobtained by this nut Z ought to be sufficient to compress the balls toan amount varying according to the depth of the teeth of the rack. Onthe release of the nut Z the cone e' is pressed by the elasticity of theballs, so as -to bring the teeth of the racks on the nut h and cone cinto proper engagement. These arrangements oier the followingadvantages:

First. By reason of each ball'being held in IOO vertical, lateral, andoblique shocks to be absorbed.

Third. The certainty of the Wheel driving the socket Without fear ofthis part sliding on the caoutchouc.

Fourth. In the event of damage one or more balls can he easily replacedand at a loW oost instead of requiring a complete new outfit.

It is to be understood that the arrangements hereinhefore described canbe also applied to ball-bearing hubs or to metallic Wheels Withtension-spokes, as well as to motor-car Wheels 0r the Wheels ofvelocipedes or of ordinary animal-traction Vehicles. Also the balls maybe spheres, poiyhedrons, or even cylinders of india-rubber or othersuitable elastic material having analogous properties.

I also Wish it to be understood that I may vary the form, size, details,and materials ein ployed in the construction of my apparatus Withoutdeparting from the nature of my said invention.

In a vehicle-wheel, the combination of a socket or sleeve in W-hich theaxle turns, an exterior socket to which the spokes of the Wheel aresecured, the exterior socket inelosing the rstinamed socket and havingsegmental recesses formed in the interior thereh of, yielding ballsiitted in said recesses, and cones secured on the first-named socket orsleeve Within the exterior socket, such cones serving to hold theyielding balls, whereby to mount the exterior socket upon the interiorsocket.

The foregoing specification of my improvements in antivi)oratoryyelastic naves for ve hicle-Wheels signed by me ythis 13th day of April,1899. f

CASIMIR CONSTANT BALLIN.

Witnesses:

EDWARD P. MACLEAN, MAURICE HENRI PIGNET.

